Improvement in horseshoes



R. LEF..v

Horseshoe,

Patented 1an. 26,1875'` UNITED STATES PATENT OFFICE.

n on E .aTIEEToEeIn cIIInATI, o E I o.

-IMPRovr-:MENT IN HoRsEsHo Es.-

Specification forming part of Letters Patent No. 159,191, dated January 26, 1875; applicatiorfled December 19, 1874.

to permit the lower end of the shank of the "calk to be passed through the flatteneddepression. The shank of the calk is coved, sothat the side of the pin opposite to the attened depression may be turned therein, and thus secure the bolt in position.

In the accompanying. drawing, Figure l is.

' a perspective view of `a horseshoe embodying my invention, the shoe beingshown in theinverted position, two of the calks being `re moved. Fig. 2 is a partially-sectioned plan of the under side of the shoe, two of the calks being locked in and one unlocked for 'withdrawal. Figs.3 and 4' .are enlarged vertical sections through the shank and' socket of t one of the calks in the locked and unlocked conditions respectively.

The body VA of my horseshoe'ma'y be cast malleable iron, or may be forged wrought-iron,

or cast-steel. B are sockets toreccive the shanks G of calks D.- Said shanks have coves 'or' vconcave notches c. ..Horizontal perforations 'E receive pins F, which gare securely lriveted in their` places, and are provided with nicked heads'G, to enable them to be turned. Each pin has a depression, f, which, being brought toward the socket, leaves a free opening for the insertion or. removal of the calk. After insertion in their respective sockets, the calksA are secured by turning the pins F around, un-

-. til their round portions engage in the notches c, and thus securely lock or retain the calks to their places. Y y

The nicked heads ofthe pins -C are entirely buried or countersunk in the' fbody, so as ,to leave no projection which might otherwise le liable to strikeagainst rocks or other impediments, and thus loosen the calks. The calks ybear firmly` hy theirl square shoulders K on the sole of the shoe.

After turning'the pin around with its iiat surface toward the shank-socket, the calk can be easily detached by prying underneath itsA shoulder by means of thesame screw-driver ybywhich the pin has been turned,

This shoe is of great convenience and utility for replacing worntoes and heels with new ones, or smooth calks with rough or sharpened ones in frostyweather, `and all this without relnovingtthe shoe from the horses foot.

It will be seen-that the calks hav'eno direct bearing upon the hoof, and press only through the medium of the body A, with an equal and easy bearing all around. s

' The bearing-shoulders of the calk may be `either all around, as shown for the heel-pieces, or only on two opposite sides, as shown for the toe-piece.

I claim as new and of my inventionl The sunken and riveted rotatable pins F,

having nicked heads G and flattened depres `sions f, in combinationgwith a horseshoe, A, having` sockets B, and calksD, having covedshanks C c, as and for the purpose set forth.

In testimony of vwhich invention I hereunto set my hand.

' ROBERT LEE.

. Attest:-

GEo. E. KNIGHT, O. lllrnon.v 

